Tractor



D. PARRETT April 2, 1929.

TRACTOR Filed Sept. 28. 1925 2 Sheets-Sheet u u D April 2, 1929. D, PAR'RET r 1,707316 TRACTOR Filed Sept. 28, 1925 2 Sheets-Sheet 2 Ill-2 7% INVENTOR A TTORNE Y8 Patented Apr. 2, 1929.

UNITED S TRACTOR.

Application filed September 28, serial No. filldlfil.

This inveutirm relates to tractors, itpai ticularly relating to an arrangement for as sembling the transmission. and. diilercntil housings, together with the drive shaft con nection between the transmission and dill erential devices of an automobile chassis,

whereby the same can be readily converted into a tractor or the kind particulisly described in my pendin application l l' 755,131 filed Dec. 11, 1924.

The purpose of this invention is to dev a simple and eliective arrangement for converting the chassis oi aused automobile, especially one of the Ford type into a tractor. the particular purpose of this invention. be ing to devise an arrangement for reassen bling the rear axle and differential mechanism carried thereby so that it will. occupy a position in cl proximity to the transmission housing and term with said transmission housing a compact and simple arrangement whereby power maybe transmitted from the rear axle to a pair of drive Wheels located adjacent the forward end of the power unit.

A further and more specific object oi the invention is to provide a simple and offer-.- tive arrangement for connecting; formerly widely separatedtransmission and differ-en tial housings rigidly and compactly together and for transmitting the power from the transmissiondevices to the differential gearing.

In the accompanying drawings:

Fig. 1 is a side elevation of a machine cmbodying the improvements.

Fig. 2 is a side view partly in longitudinal section of the transmission and (lill'erential housings and the connections between the same. i

Fig. 3 Fig. 2. r

Fig. 4 is an elevation of the adapter disk or plate employed in forming the connection between the housings.

Fig. 5 is a section on the line 55 of Fig. 4.

The general arrangement of the machine is the same as that described in my pending application and briefly referred to as follows: 1 represents a standard Ford auto mobile power plant mounted on the supporting frame members 2 which are cut off a short distance in the rear of the plant. 3 s represents the transmission housing; and 4 the differential housing containing the usual u n 7 u is a section on the line 3-3 of transmission and diilt'ercntial Cwvices the (litter-en havinn; the rsual tubu- "ons 4t 'wl close drive axles or shafts el. no 1 which of two wide the parts are mounteu vertical. channels 5 cents. and two Jieces lr.

es connector.

1- supporter to in the manner in :mv p ding application. ihapeil if is liis'tcncd to the under edges of the sine illlli'rffi 5 by ll-holts t3 and traction wheels 9 are rota ably mounted upon the lun'isontal ends oi th'i aide. llach traction wheelhas ye sprocket wheel. 10 about which passes a sprocket chain 11 which also passes about a sprocket wheel 12 on its mi'rcspondin drive shaft at. Each set oi sprocket who and its chair is enclosed in a housing 13 ietcd both to the suppoilliuo;

is conn 7 and to the housing extension l so ie the two members together. An y cultivator is shown connected with the tractor, the tongue 1d of win 11 is con to the draw-bar 15 in the manner described in my previous application. The f-itlllltllllfiltllf; for steering the tractor are shown, but will not be described as they :torm no part of the present invention.

in reconstructingg the old chassis of a Ford automobile the long drive shaft and its casing; hich extend between the transmis sion and diilcrential housings is discarded and the usual bearing llflllil rlfl; 16 which contains the roller bearings 1? her the rear end of the drive shaft as well as the thrust devices 1'5, is connected. to the rear end Oli the transmission housing; To that end I employ a special adapt tor disk or plate 18 which is provided. with a series of bolt holes 18 which are c ned with the originally establis zed bol holes of the flange 3 on the rear end of the transmission hous inn; and securely fas ened thereto by the bolts 19. Before secl .4 this dish in position, however, it is connected. to the forward end of the bearing housing 16 by the bolts 20, the dislr 18 hernia; provided with a series oi holes 21 to receive these bolts. these holes 21 being positioned to align themselves with the originally established bolt holes in the bearing housing. These bolts 20 also secure the housing; 16 to the flange at of the ential gearing. [The shaft 24 is about onesixththe length of the standard Ford drive shaft, The rear end of this short shaft 24 has connected therewith the original bevelled pinion 25 which meshes with the bevelled ring gears 26 of the differential gearing. Its'forward end is shouldered and f has a collar 27 between the shoulder and the disk'1-7 and is also squared as at 28 to fit the square socket of the tail shaft 29 of the transmission. The member 80, which formed the socket part of a universal joint, as well asa bearing for the tail shaft in v the original structure, is retained and serves onlylin the present structure as a bearing for the tail shaft, the outer flanged part of this member 30 being secured between the plate 17 and the fiange3 by the bolts 19.

-By this arrangement I am enabled to readily and effectively couple up the rear axle with the rear end of the transmission housing by dispensing With the long drive shaft and its housing and substituting therefore a short shaft and adapter disk or plate; this plate having a series of bolt openings positioned to align themselves with the orig- V v inalbolt openings of the bearing and transmission housings.

Having thus described my invention, I claimr r said bearing housing and differential hous- 111g being arranged to be connected together, said hearing housing and transmission housing being each formed with a series of originally established points of attachment, one

series of said points of attachmentbeing F located in different longitudinal planes from the other series, and an adapter plate provided with two series of points of attachment corresponding with the points of. attachment of said housing, and located in the same vertical plane, whereby said bearing housing and transmission housing may be connected together through the medium of said adapter plate. a 2.111 a structure of the character described, the combination of a transmission housing, a differential housing and a hearing housing of a standard motor vehicle chassis, said transmission housing having a flange provided with originally established bolt holes which provide a place for attachment of the forward end of the propeller shaft casing in the original structure, said bearing-housing also having bolt holes extending throughout the length thereof to receive bolts to connect the same to said differential housing, and an adapter plate provided with bolt holes corresponding to the bolt holes of both transmission housing and the bearing housing whereby it may be secured to both housings to connect said housings together.

In testimony whereof, I have hereunto set my hand this 6th day of August, 1925.

DENT PARRETT. 

